Peter f



Ais the barrel of a A "dl-niiet tant PETER F. (IEDERHOLM, OF STILLWATER, MINNESOTA.

Letters Patent No. 97,165, dated Noce/:aber` 23, 1869.

The Schedule referred to in these Letters Patent and making parl; of the same.

To all 'whom 'it may concern:

ing the valves aud central discharge-pipe.

Similar letters of reference indicate corresponding parts.

This invention is au improvement in syringes adapted more especially for the purpose of extinguishing res; and to this end, i

It consists in having a separate suction-pipe formed around a central dischargepipe, said suction -pipe being provided, at its inner end, with valves that open into the cylinder, whereby the piston is enabled to draw in a large volume of Water through both pipes, but to discharge it only through the central pipe.

To enable others skilled iu the art to construct sylinges according to my invention, I will proceed to describe the same, with reference to the drawing.

l syringe, constructed of a suitable capacity and forni.

Bis a central'discharge-pipe secured to one end of Figure 2, a transverse section on the line :v x, showthe barrel A, of' a tapering form, and su'cient length to answer its purpose.

(l is a separate suction-pipe formed around the discharge-pipe B, large enough to leave an annular space for the whole length of the pipe B, spreading itself near where it meets the end ot' the barrel, until it assumes about thesarne size as the latter.

This suction-pipe communicates with the barrel A, through holes e c, provided with valves c' c'.

These valvesf open into the vbarrel of the syringe and allow the water Ito be drawn into the same by means of a piston,` D, but close the holes c c, when the discharge takes place through thepipe B. d,

e is a-guide for the piston D, and also serves as a cover for the other end of the barrel,

This construction of the syringe secures an easy admission of a larger body of water into the barrel than is the case in syringes heretofore made, andmay therefore be filled very rapidly, while it provides. for

the ejection of the water with great force and to a v great distance.

What is here claimed, and desired to Letters Patent, is

The syringe, having a separate suction -pipe, O, formed around the central discharge-pipe B, and provided withvalves c c, substantially as and for the purpose herein described.

Witnesses: PETER- F. CEDERHOLM.`

O. ENGDABL,

be secured by T. W. PETERSON. 

